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Subtract 18/90 from 49/4

1st number: 12 1/4, 2nd number: 18/90

49/4 - 18/90 is 241/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 4 × 45 = 180,
    49/4 = 49 × 45/4 × 45 = 2205/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    18/90 = 18 × 2/90 × 2 = 36/180
  4. Subtract the two like fractions:
    2205/180 - 36/180 = 2205 - 36/180 = 2169/180
  5. After reducing the fraction, the answer is 241/20
  6. In mixed form: 121/20

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